Fortunately, none of these 7 crazy movie characters that lost touch with reality are able to walk off of the screen and into a viewer's life. They all differ in their career paths, but they each could easily be roommates in a mental ward–or a maximum-security prison. These social misfits may have distinctive traumatic issues that need medical attention. But it is difficult to sympathize with the crazy behavior of these movie characters when their disconnect from reality puts innocent people around them at risk.

Martin Riggs "Lethal Weapon" Mel Gibson became famous for playing the rugged warrior "Mad Max", but his performance became madder and crazier when he played a suicidal cop named Martin Riggs. Even Riggs' reluctant police partner Detective Sergeant Roger Murtaugh is unconvinced of his sanity. After intervening when Riggs tries to kill himself, Murtaugh tells him: "You're not trying to draw a psycho pension! You really are crazy!" It is difficult for Riggs to remain focused on saving lives when he does not want to save his own.

Colonel Kurtz "Apocalypse Now" In Francis Ford Coppola's epic Vietnam War movie, Marlon Brando plays Colonel Kurtz, a rogue soldier whose crazy military tactics are so profane that soldiers from his own country are on a mission to kill him. This quote from Kurtz captures his crazy killer instinct that has gone beyond the call of duty: "We must kill them. We must incinerate them. Pig after pig... cow after cow... village after village... army after army." His sense of reality has been tainted by the horrific nightmares of war.

Leatherface "The Texas Chainsaw Massacre" As one of the coldest crazies of the horror movie genre, Leatherface lives up to his name by wearing a maliciously made mask of human skin. There are very few movie characters whose sense of reality is more mutated than this barbaric cannibal who, along with his socially inept family, spend their days killing people then recycling their body parts into food that they sell at a near by store. The vomit-inducing crazy behavior of this movie character has spawned sequels and remakes of the original Texas Chainsaw film.

Patrick Bateman "American Psycho" Christian Bale plays this psychologically inept Wall Street businessman who spends his off-hours as a murderer.  His crazy blood lust even overpowers the pleasure that people may bring him. After an intimate ménage a trois with a pair of prostitutes, Bateman brutally tortures them. Patrick Bateman is a movie character whose actions are so crazy that he is aware of it himself when he says: "I like to dissect girls. Did you know I'm utterly insane?"

Don Logan "Sexy Beast" When it comes to movie characters whose hands cannot be wrapped around reality, Don Logan may have used his hands to write the manual. His verbally, physically and emotionally abusive behavior drive past criminal associate crazy. Don Logan's relentless refusal to leave this retired crook's Spanish villa until he commits to an upcoming bank heist makes him one of the most unwelcome houseguests in movie history. Reality is telling Don "no,"  but he only hears "yes." Don Logan's crazy delusions carry over in this quote: "I won't let you be happy, why should I?"

Frank Booth "Blue Velvet" In a quiet, unassuming suburban town that appears to be the ideal location to avoid crime, Frank Booth is eroding its purity through inexplicably foul forms of sex and violence. Unfortunately for his neighbors, Booth never got the memo that it is not socially acceptable to kidnap a man and viciously beat him, or traumatize a woman with abusive sadomasochism. Making a woman fear for her life while you dry hump her and breath into some weird gas mask is not sexy–or sane.

Jack Torrance "The Shining" While spending the winter at a hotel as a caretaker and to finish writing a novel, Jack Torrance becomes possessed by demonic entities that are haunting the isolated hotel. During this supernatural separation from reality, Jack goes from having a ghost serve him some bourbon, to another trying to convince him to kill his wife and son. Torrance then trades his typewriter for an ax and chases them.